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SHI Li-ping, FAN Li-li, BU Ling-chen, ZHANG Jian-wei, WANG Tai-xu. Application of Improved p-q Detection Method in D-STATCOM Current Detectio[J]. Journal of Mine Automation, 2010, 36(3): 53-57.
Citation: SHI Li-ping, FAN Li-li, BU Ling-chen, ZHANG Jian-wei, WANG Tai-xu. Application of Improved p-q Detection Method in D-STATCOM Current Detectio[J]. Journal of Mine Automation, 2010, 36(3): 53-57.
shu

Application of Improved p-q Detection Method in D-STATCOM Current Detectio

  • School of Information and Electrical Engineering of CUMT.,Xuzhou 221008,China

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  • The paper analyzed error cause by ues of traditional p-q detection method to detect harmonic current,reactive current and negative current of load current,and proposed an improved p-q detection method. The improved p-q method makes use of one-phase voltage to construct virtual and symmetrical three-phase voltage to replace real three-phase voltage,it can detect harmonic current,reactive current and negative current when voltages of power network is asymmetric,so as to eliminate error of compensation current detection caused by asymmetric cause.The simulation result validated the detection method.
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